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Hair ice

Exidiopsis effusa


VT is usually under a heavy dumping of snow, but this year it was warm and we were able to see a new form of mycelium Fungi. Walking through the forest we saw a number of hard wood branches with a white fluffy stuff. The white fungi was growing on the wood and under the bark. I touched the middle of the white stuff and pulled out the middle on image one. It felt and looked like the fluffy seed tops of milkweed. Delicate, about 1 to 2 inches in height. A fine mass forms the mycelium of the mushrooms usually growing underground and under snow.


The vegetative body grows underground and on dead hardwood sticks.

1 Species ID Suggestions

Hair Ice
Exidiopsis effusa Hair ice - Wikipedia

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Machi 3 years ago

I think this is actually Hair ice. Nice find! I have always wanted to see it.

Vermont, USA

Spotted on Dec 27, 2015
Submitted on Dec 30, 2015

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